* Tests if writing out a pre element keeps white-spaces.
*/
public void testPre() throws Exception {
final DOMOutputBuffer rootBuffer = new TestDOMOutputBuffer();
final MarinerPageContext context = protocol.getMarinerPageContext();
context.pushOutputBuffer(rootBuffer);
final PreAttributes attributes = new PreAttributes();
attributes.setStyles(StylesBuilder.getInitialValueStyles());
final EmphasisAttributes emphasisAttrs = new EmphasisAttributes();
protocol.writeOpenPre(attributes);